# CVE-2018-8345: LNK Remote Code Execution Vulnerability CVE-2018-8345 is fixed in 31 products on 1 platform, first by KB4343887, released August 14, 2018. It is not reported as exploited, but the vendor rates exploitation more likely. Patch Radar priority: Urgent. - Web page: https://patchblox.com/security/cve/CVE-2018-8345 - Priority: Urgent - CVSS: 7.5 (Critical) - EPSS: 0.1490 - CISA KEV: not listed - Exploited (vendor report): no - Publicly disclosed: no - Vendor exploitability assessment: Exploitation More Likely - Published: Aug 14, 2018 - Vendor advisory: https://msrc.microsoft.com/update-guide/vulnerability/CVE-2018-8345 ## Description

A remote code execution vulnerability exists in Microsoft Windows that could allow remote code execution if a .LNK file is processed.

An attacker who successfully exploited this vulnerability could gain the same user rights as the local user. Users whose accounts are configured to have fewer user rights on the system could be less impacted than users who operate with administrative user rights.

The attacker could present to the user a removable drive, or remote share, that contains a malicious .LNK file and an associated malicious binary. When the user opens this drive(or remote share) in Windows Explorer, or any other application that parses the .LNK file, the malicious binary will execute code of the attacker’s choice, on the target system.

The security update addresses the vulnerability by correcting the processing of shortcut LNK references.

## Where it's fixed | Platform | Product | Fixed in | Fix | Released | |---|---|---|---|---| | Microsoft | Windows 10 Version 1607 for 32-bit Systems | 14393.2430 | [KB4343887](https://patchblox.com/security/data/fix/microsoft/kb4343887.md) | Aug 14, 2018 | | Microsoft | Windows 10 Version 1607 for x64-based Systems | 14393.2430 | [KB4343887](https://patchblox.com/security/data/fix/microsoft/kb4343887.md) | Aug 14, 2018 | | Microsoft | Windows 10 Version 1703 for 32-bit Systems | 15063.1266 | [KB4343885](https://patchblox.com/security/data/fix/microsoft/kb4343885.md) | Aug 14, 2018 | | Microsoft | Windows 10 Version 1703 for x64-based Systems | 15063.1266 | [KB4343885](https://patchblox.com/security/data/fix/microsoft/kb4343885.md) | Aug 14, 2018 | | Microsoft | Windows 10 Version 1709 for 32-bit Systems | 16299.611 | [KB4343897](https://patchblox.com/security/data/fix/microsoft/kb4343897.md) | Aug 14, 2018 | | Microsoft | Windows 10 Version 1709 for x64-based Systems | 16299.611 | [KB4343897](https://patchblox.com/security/data/fix/microsoft/kb4343897.md) | Aug 14, 2018 | | Microsoft | Windows 10 Version 1803 for 32-bit Systems | 17134.228 | [KB4343909](https://patchblox.com/security/data/fix/microsoft/kb4343909.md) | Aug 14, 2018 | | Microsoft | Windows 10 Version 1803 for x64-based Systems | 17134.228 | [KB4343909](https://patchblox.com/security/data/fix/microsoft/kb4343909.md) | Aug 14, 2018 | | Microsoft | Windows 10 for 32-bit Systems | 10240.17946 | [KB4343892](https://patchblox.com/security/data/fix/microsoft/kb4343892.md) | Aug 14, 2018 | | Microsoft | Windows 10 for x64-based Systems | 10240.17946 | [KB4343892](https://patchblox.com/security/data/fix/microsoft/kb4343892.md) | Aug 14, 2018 | | Microsoft | Windows 7 for 32-bit Systems Service Pack 1 | | [KB4343899](https://patchblox.com/security/data/fix/microsoft/kb4343899.md) | Aug 14, 2018 | | Microsoft | Windows 7 for 32-bit Systems Service Pack 1 | | [KB4343900](https://patchblox.com/security/data/fix/microsoft/kb4343900.md) | Aug 14, 2018 | | Microsoft | Windows 7 for x64-based Systems Service Pack 1 | | [KB4343899](https://patchblox.com/security/data/fix/microsoft/kb4343899.md) | Aug 14, 2018 | | Microsoft | Windows 7 for x64-based Systems Service Pack 1 | | [KB4343900](https://patchblox.com/security/data/fix/microsoft/kb4343900.md) | Aug 14, 2018 | | Microsoft | Windows 8.1 for 32-bit systems | | [KB4343888](https://patchblox.com/security/data/fix/microsoft/kb4343888.md) | Aug 14, 2018 | | Microsoft | Windows 8.1 for 32-bit systems | | [KB4343898](https://patchblox.com/security/data/fix/microsoft/kb4343898.md) | Aug 14, 2018 | | Microsoft | Windows 8.1 for x64-based systems | | [KB4343888](https://patchblox.com/security/data/fix/microsoft/kb4343888.md) | Aug 14, 2018 | | Microsoft | Windows 8.1 for x64-based systems | | [KB4343898](https://patchblox.com/security/data/fix/microsoft/kb4343898.md) | Aug 14, 2018 | | Microsoft | Windows RT 8.1 | | [KB4343898](https://patchblox.com/security/data/fix/microsoft/kb4343898.md) | Aug 14, 2018 | | Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | | [KB4343899](https://patchblox.com/security/data/fix/microsoft/kb4343899.md) | Aug 14, 2018 | | Microsoft | Windows Server 2008 R2 for Itanium-Based Systems Service Pack 1 | | [KB4343900](https://patchblox.com/security/data/fix/microsoft/kb4343900.md) | Aug 14, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4343899](https://patchblox.com/security/data/fix/microsoft/kb4343899.md) | Aug 14, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 | | [KB4343900](https://patchblox.com/security/data/fix/microsoft/kb4343900.md) | Aug 14, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB4343899](https://patchblox.com/security/data/fix/microsoft/kb4343899.md) | Aug 14, 2018 | | Microsoft | Windows Server 2008 R2 for x64-based Systems Service Pack 1 (Server Core installation) | | [KB4343900](https://patchblox.com/security/data/fix/microsoft/kb4343900.md) | Aug 14, 2018 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 | | [KB4340939](https://patchblox.com/security/data/fix/microsoft/kb4340939.md) | Aug 14, 2018 | | Microsoft | Windows Server 2008 for 32-bit Systems Service Pack 2 (Server Core installation) | | [KB4340939](https://patchblox.com/security/data/fix/microsoft/kb4340939.md) | Aug 14, 2018 | | Microsoft | Windows Server 2008 for Itanium-Based Systems Service Pack 2 | | [KB4340939](https://patchblox.com/security/data/fix/microsoft/kb4340939.md) | Aug 14, 2018 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 | | [KB4340939](https://patchblox.com/security/data/fix/microsoft/kb4340939.md) | Aug 14, 2018 | | Microsoft | Windows Server 2008 for x64-based Systems Service Pack 2 (Server Core installation) | | [KB4340939](https://patchblox.com/security/data/fix/microsoft/kb4340939.md) | Aug 14, 2018 | | Microsoft | Windows Server 2012 | | [KB4343896](https://patchblox.com/security/data/fix/microsoft/kb4343896.md) | Aug 14, 2018 | | Microsoft | Windows Server 2012 | | [KB4343901](https://patchblox.com/security/data/fix/microsoft/kb4343901.md) | Aug 14, 2018 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB4343896](https://patchblox.com/security/data/fix/microsoft/kb4343896.md) | Aug 14, 2018 | | Microsoft | Windows Server 2012 (Server Core installation) | | [KB4343901](https://patchblox.com/security/data/fix/microsoft/kb4343901.md) | Aug 14, 2018 | | Microsoft | Windows Server 2012 R2 | | [KB4343888](https://patchblox.com/security/data/fix/microsoft/kb4343888.md) | Aug 14, 2018 | | Microsoft | Windows Server 2012 R2 | | [KB4343898](https://patchblox.com/security/data/fix/microsoft/kb4343898.md) | Aug 14, 2018 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4343888](https://patchblox.com/security/data/fix/microsoft/kb4343888.md) | Aug 14, 2018 | | Microsoft | Windows Server 2012 R2 (Server Core installation) | | [KB4343898](https://patchblox.com/security/data/fix/microsoft/kb4343898.md) | Aug 14, 2018 | | Microsoft | Windows Server 2016 | 14393.2430 | [KB4343887](https://patchblox.com/security/data/fix/microsoft/kb4343887.md) | Aug 14, 2018 | | Microsoft | Windows Server 2016 (Server Core installation) | 14393.2430 | [KB4343887](https://patchblox.com/security/data/fix/microsoft/kb4343887.md) | Aug 14, 2018 | | Microsoft | Windows Server, version 1709 (Server Core Installation) | 16299.611 | [KB4343897](https://patchblox.com/security/data/fix/microsoft/kb4343897.md) | Aug 14, 2018 | | Microsoft | Windows Server, version 1803 (Server Core Installation) | 17134.228 | [KB4343909](https://patchblox.com/security/data/fix/microsoft/kb4343909.md) | Aug 14, 2018 | --- Data as of 2026-11-07T06:34:28Z UTC. Source: Patchblox Patch Radar (https://patchblox.com/security/patch-radar). Patchblox finds out-of-date software on Windows, macOS and Linux and updates it through release rings: https://patchblox.com/demo